Theoretically the sites would have to block all IP addresses of all cloud providers, including massive ones such as Amazon AWS and Microsoft Azure, because people in Wisconsin can just run VPN Server software in a container or virtual machine inside one those to have their own individual VPN.

Similarly they would have to block all exit IPs of most companies because somebody in Winsconsin might be using a the VPN of the company remotelly go to their company network and via it access those sites.

This law is completelly insane.